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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Nitric oxide blocks the cell cycle of mouse macrophage-like cells in the early G2+M phase.

The effects of nitric oxide produced by macrophage-like cells ( Mm1) on the cell cycle were investigated. Mm1 cells lost proliferative activity in the presence of interleukin-6 (IL-6) and a subpopulation accumulated in the G2+M phase. This level increased in proportion to the incubation time. The DNA content of the cells was slightly lower than that of Mm1 cells treated with vinblastine or demecolcine, drugs which block the cell cycle in the M phase. The peak of the early G2+M phase was reduced by treatment with NG-mono-methyl-L-arginine. However, after treatment with exogenous nitric oxide or sodium nitroprusside, the G0/G1 phase increased, but the early-G2+M and the S phase decreased. The flow cytometry pattern in IL-6-treated Mm1 was the same as that of cytochalasin B-treated Mm1. These data suggest that endogenous nitric oxide affects the microfilament system of IL-6-treated Mm1 cells and blocks the cell cycle in the early G2+M phase.[1]

References

  1. Nitric oxide blocks the cell cycle of mouse macrophage-like cells in the early G2+M phase. Takagi, K., Isobe, Y., Yasukawa, K., Okouchi, E., Suketa, Y. FEBS Lett. (1994) [Pubmed]
 
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